Journal of prosthodontic research最新文献_第5页

Comparative accuracy assessment of analog and virtual wax-up in prosthetic-driven planning and guided implant surgery: A retrospective cohort study. 假体驱动计划和引导种植手术中模拟和虚拟上蜡的比较准确性评估：一项回顾性队列研究。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_24_00053

Wan-Tong Zhou, Xi-Jin Du, Zhi-Lin Luo, Lian-Yi Xu, Ying-Guang Cao, Ke Song

{"title":"Comparative accuracy assessment of analog and virtual wax-up in prosthetic-driven planning and guided implant surgery: A retrospective cohort study.","authors":"Wan-Tong Zhou, Xi-Jin Du, Zhi-Lin Luo, Lian-Yi Xu, Ying-Guang Cao, Ke Song","doi":"10.2186/jpr.JPR_D_24_00053","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00053","url":null,"abstract":"Purpose: This retrospective cohort study evaluated the accuracy of analog versus virtual wax-ups in prosthetic-driven planning and guided surgery.Methods: There were 73 patients with a single missing posterior tooth who underwent either an analog or virtual wax-up design following a prosthetic-driven concept. Intraoral scans of the final restoration were performed 1 year after completion of the restoration. The accuracy was assessed by comparing the deviation between the final restoration and the wax-up (analog or virtual) of each patient at the prosthetic level. The maximum deviation in six areas (buccal top, buccal mid, buccal bottom, lingual top, lingual mid, and lingual bottom) was recorded. The accuracy was also assessed at the implant level by comparing the deviation between the virtual new implant position, which was redesigned based on the final restoration as the new wax-up, and the planned position. The mean deviations in the coronal, apical, angular, and depth measurements were recorded. A two-tailed independent t-test and a one-way analysis of variance were used.Results: Statistically significant differences were observed between the buccal (P = 0.03) and lingual tops (P = 0.03) at the prosthetic level. Significant differences were observed in the angular (P < 0.01) and coronal (P = 0.01) deviations at the implant level. There were smaller deviations between the analog wax-ups and final restorations regardless of the prosthetic or implant level.Conclusions: Analog wax-ups were preferable to virtual wax-ups for preoperative design in computer-guided implant surgery.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Masticatory performance indicates the development of psychological frailty: A 6-year prospective cohort study by the SONIC study group. 咀嚼表现表明心理脆弱的发展：SONIC研究组的6年前瞻性队列研究。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-04 DOI: 10.2186/jpr.JPR_D_23_00282

Suzuna Akema, Tomoaki Mameno, Takeshi Nakagawa, Hiroki Inagaki, Kodai Hatta, Yuki Murotani, Yoshitaka Tsujioka, Hiromasa Hagino, Kotaro Higashi, Toshihito Takahashi, Masahiro Wada, Yasuyuki Gondo, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Soshiro Ogata, Kazunori Ikebe

{"title":"Masticatory performance indicates the development of psychological frailty: A 6-year prospective cohort study by the SONIC study group.","authors":"Suzuna Akema, Tomoaki Mameno, Takeshi Nakagawa, Hiroki Inagaki, Kodai Hatta, Yuki Murotani, Yoshitaka Tsujioka, Hiromasa Hagino, Kotaro Higashi, Toshihito Takahashi, Masahiro Wada, Yasuyuki Gondo, Kei Kamide, Mai Kabayama, Tatsuro Ishizaki, Yukie Masui, Soshiro Ogata, Kazunori Ikebe","doi":"10.2186/jpr.JPR_D_23_00282","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_23_00282","url":null,"abstract":"Purpose: Although the association between oral health and physical frailty is well established, psychological frailty has not been investigated. Therefore, this prospective cohort study was conducted to examine the association between masticatory performance and psychological frailty in older community-dwelling Japanese individuals.Methods: The participants included 498 older adults who completed baseline and 3- and 6-year follow-up surveys. The World Health Organization-5 (WHO-5) scale and the Japanese version of the Montreal Cognitive Assessment (MoCA-J) were used to evaluate the psychological frailty status of participants. Psychological frailty was defined as a WHO-5 score < 13 and a MoCA-J score < 23. Masticatory performance was evaluated using a scoring method for the test gummy jelly (score: 0-9). A mixed-effects ordinal logit model analysis was used to examine the influence of masticatory performance and number of teeth on the development of psychological frailty while adjusting for relevant factors such as educational level, financial status, living situation, area of residence, history of chronic diseases, and handgrip strength.Results: A total of 311 participants (62.5%) exhibited psychological robustness at baseline. The rates of development of psychological frailty after 3 and 6 years were 4.2% and 4.5%, respectively. The longitudinal analysis revealed that masticatory performance at baseline was negatively associated with the prevalence of psychological frailty and pre-frailty at follow-up.Conclusions: Decreased masticatory performance is associated with the development of psychological frailty in older community-dwelling people of Japanese descent.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of artificial intelligence in predicting maximal intercuspal position: A feasibility study. 应用人工智能预测最大尖间位置的可行性研究。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-03 DOI: 10.2186/jpr.JPR_D_24_00112

Jiamin Wu, Ki Hin Yuen, Yun Hong Lee, Ying Liu, James Kit Hon Tsoi, Walter Yu Hang Lam

{"title":"The use of artificial intelligence in predicting maximal intercuspal position: A feasibility study.","authors":"Jiamin Wu, Ki Hin Yuen, Yun Hong Lee, Ying Liu, James Kit Hon Tsoi, Walter Yu Hang Lam","doi":"10.2186/jpr.JPR_D_24_00112","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00112","url":null,"abstract":"Purpose: Artificial intelligence (AI) may be used to learn and predict the maxillomandibular relationship, particularly when the number of occluding teeth pairs is insufficient. This study aimed to investigate the feasibility of training a new two-stage coarse-to-fine teeth alignment pipeline AI system in predicting maxillomandibular relationships based on the occlusal morphology of antagonistic teeth.Methods: Maxillary and mandibular stone casts were collected and scanned at the maximal intercuspal position (MIP). A deep learning alignment network was trained using 90% of cast pairs. The remaining 10% of pairs were input into the trained AI system for validation. The maxillomandibular relationships predicted by the AI system were superimposed and compared with those of the mounted casts. Cartesian x-, y-, and z-coordinates were defined for each mandibular tooth scan with respect to (w.r.t.) its occlusal plane and dental midline. The discrepancy in the position of maxillary teeth scans was described based on rotation and translation.Results: A total of 325 pairs of maxillary and mandibular stone casts were collected, with 300 pairs used for training and 25 for validation. For the AI-predicted maxillomandibular relationship, the mean rotational discrepancies w.r.t. the x-, y-, and z-axis were 1.407°±1.548°, 1.269°±8.476°, and 0.730°±1.334°, respectively. The mean translational discrepancies w.r.t. the x-, y-, and z-axis were 0.185±1.324 mm, 1.222±0.848 mm, -1.034±0.273 mm, respectively.Conclusions: The AI-predicted maxillomandibular relationship for maxillary and mandibular teeth scans shows discrepancies of less than 1.3 mm and 1.5° compared to the actual relationships.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal allergy as a persistent factor for psoriasis. 金属过敏是牛皮癣的一个持续因素。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-03 DOI: 10.2186/jpr.JPR_D_24_00061

Yosuke Akiba, Yurina Takaoka, Kaori Eguch, Nami Akiba, Nagakazu Ko, Katsumi Uoshima

{"title":"Metal allergy as a persistent factor for psoriasis.","authors":"Yosuke Akiba, Yurina Takaoka, Kaori Eguch, Nami Akiba, Nagakazu Ko, Katsumi Uoshima","doi":"10.2186/jpr.JPR_D_24_00061","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00061","url":null,"abstract":"Purpose: Psoriasis is a complex, chronic inflammatory keratosis of unclear origin that is challenging to treat. In patients with psoriasis suspected of having metal allergies, the removal of oral metallic prostheses contributes to the alleviation of psoriasis symptoms. However, the relationship and mechanism of the metal removal effect and improvement in psoriasis symptoms in patients with metal allergies are unknown. This study aimed to investigate the relationship between metal allergies and psoriasis using an animal model.Methods: In the metal allergy model, 4-week-old rats were sensitized and treated with nickel (II) chloride (NiCl2) solution (provocation model). In the psoriasis model, imiquimod (IMQ) cream was applied to the shaved dorsal skin of rats (IMQ model). To create a psoriasis/metal-allergy composite rat model, we combined the provocation and IMQ models (provocation + IMQ model). Macroscopic observation, histological analysis, and quantitative gene expression analyses were performed to evaluate outcomes.Results: In the IMQ model, psoriasis-like symptoms were visually observed from day 2 to day 9. In the provocation + IMQ model, psoriasis-like symptoms persisted for at least 11 days. Histological analysis revealed epidermal thickening and an increase in the number of interleukin (IL)-17-positive cells in the provocation + IMQ model on days 7 and 9. The gene expression of IL-17 in the submandibular lymph nodes and spleen increased in the provocation + IMQ model.Conclusions: The induced state of Ni allergy may contribute to the maintenance of psoriasis pathology through IL-17 activity.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of wall thickness on the fracture resistance of hollow zirconia artificial teeth fabricated by 3D zirconia printing. 三维氧化锆打印制备的空心氧化锆假牙壁厚对其抗断裂性能的影响。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-03 DOI: 10.2186/jpr.JPR_D_24_00166

Hiro Kobayashi, Stefan Rues, Akinori Tasaka, Peter Rammelsberg, Shuichiro Yamashita, Franz Sebastian Schwindling

{"title":"Influence of wall thickness on the fracture resistance of hollow zirconia artificial teeth fabricated by 3D zirconia printing.","authors":"Hiro Kobayashi, Stefan Rues, Akinori Tasaka, Peter Rammelsberg, Shuichiro Yamashita, Franz Sebastian Schwindling","doi":"10.2186/jpr.JPR_D_24_00166","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00166","url":null,"abstract":"Purpose: To determine the effect of wall thickness on the fracture load of hollow-structured zirconia teeth fabricated using 3D printing.Methods: The geometry of an artificial ceramic tooth (mandibular right first molar) was copied and modified. The final test group design yielded wall thicknesses of 0.30, 0.50, 0.75, and 1.00 mm. Twenty zirconia specimens from each group were fabricated using a 3D printer. Artificial teeth were divided into subgroups of teeth that remained hollow (hollow teeth) or were filled with resin (filled teeth). Fracture load tests were performed, and each artificial tooth was examined using a digital microscope. Analysis of variance was used to compare the fracture resistance of the artificial zirconia teeth among the conditions, followed by pairwise Tukey's tests. T-tests were used to compare the fracture resistance between the hollow and filled teeth within the test groups.Results: The fracture resistance of artificial zirconia teeth decreased significantly (P < 0.001) with decreasing wall thickness. The mean fracture load reached ≥500 N for wall thicknesses of 0.75 mm and 1.00 mm. Resin filling of crowns significantly improved the fracture load of very thin walls. Microscopy revealed that most occlusal surfaces of the hollow teeth were completely fractured, whereas all the fracture surfaces of the filled teeth were incompletely fractured.Conclusions: Artificial zirconia teeth offer sufficient fracture resistance for clinical use when the wall thickness is ≥0.75 mm, regardless of the presence of resin filling.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adherence to oral appliance treatment for obstructive sleep apnea in patients with continuous positive airway pressure failure. 坚持口腔器械治疗阻塞性睡眠呼吸暂停患者持续气道正压衰竭。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-03 DOI: 10.2186/jpr.JPR_D_24_00138

Akio Himejima, Maho Kono, Keishi Wada, Liqin Wang, Ayako Masago, Kentaro Okuno

{"title":"Adherence to oral appliance treatment for obstructive sleep apnea in patients with continuous positive airway pressure failure.","authors":"Akio Himejima, Maho Kono, Keishi Wada, Liqin Wang, Ayako Masago, Kentaro Okuno","doi":"10.2186/jpr.JPR_D_24_00138","DOIUrl":"https://doi.org/10.2186/jpr.JPR_D_24_00138","url":null,"abstract":"Purpose: The primary aim of this study was to determine the continuation and success rates of oral appliance (OA) therapy for patients in whom continuous positive airway pressure (CPAP) therapy failed. The secondary aim was to identify predictive factors for the long-term use of OA in patients with CPAP failure.Methods: A total of 81 patients who failed with CPAP use were included in this study. Patients who had been using OA for more than 1 year at follow-up visits were assigned to Group S, whereas those who discontinued OA or were lost to follow-up within 1 year were assigned to Group D. We investigated the continuation and success rates of OA therapy, as well as predictive factors for its long-term use for those with CPAP failure.Results: Of the 81 patients, 60 were in Group S and 21 were in Group D; 74.0% of patients with CPAP failure continued OA therapy for more than 1 year. The apnea-hypopnea index was reduced from 41.3±21.7/h to 12.4±6.5/h with OA therapy. The only significant predictor of long-term OA use in patients with CPAP failure was awareness of the effectiveness of OA therapy after 1 month (P = 0.003, odds ratio: 9.731, 95% confidence interval: 2.146-44.119).Conclusions: Patients who recognized the effectiveness of OA treatment in the early stages were more likely to continue using OA therapy long-term.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":""},"PeriodicalIF":3.2,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142932196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From prosthodontics to gerodontics-Challenges in a super-aging society. 从口腔修复学到老年病学——超老龄化社会的挑战。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-01 DOI: 10.2186/jpr.JPR_D_24_00323

Frauke Müller

引用次数: 0

Current state and future challenges of digital removable partial dentures. 数字可摘局部义齿的现状及未来挑战。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2025-01-01 DOI: 10.2186/jpr.JPR_D_24_00296

Akinori Tasaka

引用次数: 0

Proposals and evaluations for the enhancement of CAD/CAM education. 关于加强 CAD/CAM 教育的建议和评估。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2024-10-24 DOI: 10.2186/jpr.JPR_D_24_00132

Maki Hosoki, Mayu Miyagi, Kazuo Okura, Miho Inoue, Masamitsu Oshima, Yoshitaka Suzuki, Aya Ozawa, Akari Shibagaki, Tatsuya Taniwaki, Kohei Kamoi, Nobuyuki Bando, Yasutomo Yoshihara, Mizuki Shinkai, Toyoko Tajima, Jaime Jr Fabillar, Yoshizo Matsuka

引用次数: 0

Dental prosthesis use moderates association between tooth loss and risk of depressive symptoms in older adults with severe tooth loss: The JAGES cohort trial. 在牙齿严重缺失的老年人中，义齿的使用可缓和牙齿缺失与抑郁症状风险之间的关系：JAGES队列试验。

IF 3.2 2区医学

Journal of prosthodontic research Pub Date : 2024-10-16 Epub Date: 2024-03-13 DOI: 10.2186/jpr.JPR_D_23_00046

Noriko Nakazawa, Kenji Takeuchi, Taro Kusama, Sakura Kiuchi, Katsunori Kondo, Ken Osaka

{"title":"Dental prosthesis use moderates association between tooth loss and risk of depressive symptoms in older adults with severe tooth loss: The JAGES cohort trial.","authors":"Noriko Nakazawa, Kenji Takeuchi, Taro Kusama, Sakura Kiuchi, Katsunori Kondo, Ken Osaka","doi":"10.2186/jpr.JPR_D_23_00046","DOIUrl":"10.2186/jpr.JPR_D_23_00046","url":null,"abstract":"Purpose: Depression is a leading cause of disability. Although tooth loss increases the risk of depressive symptoms, it is unclear whether dental prosthesis use moderates this risk. This study aimed to investigate whether dental prosthesis use moderates the association between tooth loss and new depressive symptoms in older adults.Methods: This cohort study used data from the 2016 and 2019 Japan Gerontological Evaluation Study (JAGES). The participants were independent older adults aged ≥65 years without depressive symptoms in 2016. The onset of depressive symptoms in 2019 was the outcome variable. The exposure variables were dental status (≥20 teeth, 10-19 teeth with or without dental prostheses, and 0-9 teeth with or without dental prostheses) in 2016. Risk ratios (RRs) and 95% confidence intervals (CIs) were estimated using Poisson regression models with potential confounders as covariates.Results: The analysis included 50,169 participants (mean age: 72.8 [standard deviation, 5.4] years). During follow-up, the incidence of depressive symptoms was 11.3%. Compared to those who had ≥20 teeth, the RR of depressive symptom onset was highest among those who had 0-9 teeth without dental prostheses (RR, 1.27; 95% CI, 1.04-1.56), after the adjustment for confounders. However, this risk was lower in those with 0-9 teeth and dental prostheses (RR, 1.08; 95% CI, 1.01-1.15).Conclusions: These data highlight the potential of dental prostheses as an important factor in reducing the risk of depressive symptoms among individuals with severe tooth loss.","PeriodicalId":16887,"journal":{"name":"Journal of prosthodontic research","volume":" ","pages":"578-584"},"PeriodicalIF":3.2,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140119902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0